Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:33 2012 Optimize a model with 247 rows, 273 columns and 888 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 247 rows, 247 columns, 862 nonzeros Variable types: 0 continuous, 247 integer (246 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 158 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 100 47.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.04296 0 102 26.00000 0.04296 100% - 0s H 0 0 11.0000000 0.04296 100% - 0s 0 0 0.69529 0 111 11.00000 0.69529 93.7% - 0s H 0 0 10.0000000 0.69529 93.0% - 0s H 0 0 6.0000000 0.69529 88.4% - 0s 0 0 0.69529 0 111 6.00000 0.69529 88.4% - 0s 0 2 0.75000 0 109 6.00000 0.75000 87.5% - 0s H 27 27 5.0000000 1.00000 80.0% 19.0 0s H 54 16 3.0000000 1.00000 66.7% 11.9 0s * 88 4 6 2.0000000 1.96154 1.92% 19.4 0s Cutting planes: Gomory: 4 Explored 89 nodes (2602 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%